2021/02/25 by Fober, Jakub Maksymilian
#FOS: Computer and information sciences #FOS: Electrical engineering #Graphics (cs.GR) #I.2.10 #I.3.3 #I.3.6 #I.4.1 #I.4.3 #Image and Video Processing (eess.IV) #J.5 #electronic engineering #information engineering
paper · doi:10.48550/arxiv.2102.12682
A wide choice of cinematic lenses enables motion-picture creators to adapt image visual-appearance to their creative vision. Such choice does not exist in the realm of real-time computer graphics, where only one type of perspective projection is widely used, a linear perspective. This paper presents an extended perspective imaging model, which can represent distortion and FoV parameters of entire variety of film and photographic lenses (e.g., wide-angle, fisheye, anamorphic), while preserving parametrization in an artistically convincing manner. Self-experimentation with the model revealed that each projection type provides accurate perception of a different aspect of depicted space (e.g., speed, distance, shape). Presented model, enables combination of multiple projections, each on a different axis of the image, to achieve optimal perception for a given scenario. This new projection, named aximorphic, was made available here, under an open license (CC BY-SA 3.0), for a wide and easy adoption.